package com.itheima.idea;

import java.util.Scanner;

public class Test2 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入:");
        String s = sc.nextLine();

        int bigCount = 0;
        int smallCount = 0;
        int numCount = 0;

        char[] chars = s.toCharArray();
        for (int i = 0; i < chars.length; i++) {
            char c = chars[i];
            if(c >= 'A' && c <= 'Z'){
                bigCount++;
            }else if(c >= 'a' && c <= 'z'){
                smallCount++;
            }else if(c >= '0' && c <= '9'){
                numCount++;
            }
        }
        System.out.println("大写字符的字符个数:" + bigCount);
        System.out.println("小写字符的字符个数:" + smallCount);
        System.out.println("数字字符的字符个数:" + numCount);
    }
}
